From ace625cfb1aa1b3c2f06890fb1f97900059bf226 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Thu, 18 Feb 2010 18:53:03 -0800
Subject: http: const correctness fixes

Not fun, but maybe this can help us spot _real_ problems
more easily in the future.
---
 ext/unicorn_http/c_util.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'ext/unicorn_http/c_util.h')

diff --git a/ext/unicorn_http/c_util.h b/ext/unicorn_http/c_util.h
index 9e674fa..8542b3d 100644
--- a/ext/unicorn_http/c_util.h
+++ b/ext/unicorn_http/c_util.h
@@ -29,6 +29,19 @@
 #  error off_t size unknown for this platform!
 #endif /* SIZEOF_OFF_T check */
 
+/*
+ * ragel enforces fpc as a const, and merely casting can make picky
+ * compilers unhappy, so we have this little helper do our dirty work
+ */
+static inline void *deconst(const void *in)
+{
+  union { const void *in; void *out; } tmp;
+
+  tmp.in = in;
+
+  return tmp.out;
+}
+
 /*
  * capitalizes all lower-case ASCII characters and converts dashes
  * to underscores for HTTP headers.  Locale-agnostic.
-- 
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